|Jun 23, 2012, 12:40 PM|
Joined Feb 2011
Looking for VTOL that tilts props for control
I am looking for info and videos of a VTOL that uses servos to tilt a prop while in hover for pitch and roll control. I know I have seen them but searching couldn't find them. The prop is oriented so it is horizontal, motor shaft pointing vertical. Basically the tilting replaces cyclic as used on a helicopter.
I know most 1 man gyrocopters use tilting the rotor for control. I am interested in how using a tilting prop(rotor) for control compares to conventional cyclic on a RC vehicle.
I do not want tilt props like the Osprey or tilt wings. I am looking for hovering vehicles that use tilting the prop for stability control.
|Aug 23, 2012, 09:39 AM|
Joined Oct 2004
Unless you have a fully articulated rotor it is always a form of weight shifting. For a tilt prop to work there must be some distance between the CG of the plane and the prop tilting axis, and the CG must be beneath the tilt axis while in a hover. This is not desirable in full size planes, since there must be some available CG range (expecially for cargo planes), so generally even though the rotors do tilt, pitch is controlled with fore/aft cyclic, like roll is controlled with side/side cyclic in tandem helicopters.
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